The resolution passed the Senate just a day after the White House said Wednesday that Trump will discuss allowing Russian investigators to come to the United States to question U.S. citizens, including McFaul, over crimes allegedly committed in Russia.

"One of the most stunning things about the summit was the president's openness to a request by President Putin to question former United States Ambassador to Moscow Michael McFaul and other Americans," Schumer said earlier Thursday.

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"Certainly if the president agreed to such a request, Congress must do everything in its power to block it. There can be no room for debate, no room for discussion. We must be clear and clear quickly," he continued.

State Department spokeswoman Heather Nauert blasted Russia's charges against McFaul as "ridiculous" in a press conference on Wednesday, but declined to comment on whether Trump would allow him to be questioned.

“I can’t answer on behalf of the White House," Nauert said.

“And I believe some of that would fall under the Department of Justice, so I’d have to loop in the Department of Justice on this. This is something that just came out,” she added.